PHP substr() to Extract a Part of a String

PHP substr() to Extract a Part of a String

    substr() function is used when you want to remove part of the string. It takes three parameters.

    See the substr() structure

    substr(string,start,length);

    First one for mentioning the string, 

    Second one is for where to start to,

    Third one is for how many strings to keep,

    <?php
    echo substr("Hello world dbestech ",0, 6);
    ?>

    The output is

    hello

    The above function starts to count the string from the 0th character and keep 6 of them and remove rest of them.